130125621 has 8 divisors (see below), whose sum is σ = 176441760. Its totient is φ = 85279952.

The previous prime is 130125613. The next prime is 130125683. The reversal of 130125621 is 126521031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130125621 - 2³ = 130125613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130125601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367410 + ... + 367763.

It is an arithmetic number, because the mean of its divisors is an integer number (22055220).

Almost surely, 2^130125621 is an apocalyptic number.

It is an amenable number.

130125621 is a deficient number, since it is larger than the sum of its proper divisors (46316139).

130125621 is an equidigital number, since it uses as much as digits as its factorization.

130125621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735235.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 130125621 is about 11407.2617660857. The cubic root of 130125621 is about 506.7428212996.

Adding to 130125621 its reverse (126521031), we get a palindrome (256646652).

It can be divided in two parts, 130 and 125621, that added together give a triangular number (125751 = T₅₀₁).

The spelling of 130125621 in words is "one hundred thirty million, one hundred twenty-five thousand, six hundred twenty-one".